Trevor Thomas, with Tennille by his side, talks to Girl Scouts on Wednesday at the Holmes multipurpose room. The inspirational speaker continues to make extreme hikes even after losing his sight. Fred Gladdis/Enterprise photo

Trevor Thomas, with Tennille by his side, talks to Girl Scouts on Wednesday at the Holmes multipurpose room. The inspirational speaker continues to make extreme hikes even after losing his sight. Fred Gladdis/Enterprise photo

Tasha Diaz of Yolo Eyes for Others talks with the Girl Scouts on Wednesday. Diaz helped train Tennille, who works with Trevor Thomas. Fred Gladdis/Enterprise photo